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Halogenated polymers with new sequence distributions

  • US 7,491,773 B2
  • Filed: 12/10/2004
  • Issued: 02/17/2009
  • Est. Priority Date: 12/20/2002
  • Status: Active Grant
First Claim
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1. A halogenated copolymer comprising an isoolefin and a multiolefin, the halogenated copolymer having a copolymer sequence distribution defined by the following equation:


  • F=mA/(1=mA)2wherein m is the copolymer sequence distribution parameter;

    A is the molar ratio of multiolefin to isoolefin in the copolymer; and

    F is the isoolefin-multiolefin-multiolefin triad fraction in the copolymer;

    wherein m is from greater than 2.5; and

    wherein m is determined by solving said equation.

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